//Shape.h
#ifndef SHAPE_H              
#define SHAPE_H              
#include <iostream.h> 
class Shape {             
public:               
    virtual double area() const
	{
		return 0.0; 
	} 
    virtual double volume() const
	{
		return 0.0;
	} 
    virtual void printShapeName() const = 0; 
    virtual void print() const = 0; 
}; 
#endif   
